Exam #4 Study Guide Flashcards
which phylum?
-compound eye
-1 pare of antennae
-chitinous exoskeleton with articulated appendages
phylum annelida
phylum nematoda
phylum arthropoda
phylum mollusca
phylum arthropoda
which class?
-loss of antennae
-1st pair of appendages + chellcerae
-tagmata = cephalothorax + abdomen
class chelicerata
class myriapoda
class crustcea
class hexapoda
class chelicerata
which class?
-tagmata = head + trunk
-loss of compound eye
class chelicerata
class myriapoda
class crustcea
class hexapoda
class myriapoda
which class?
-biramous 2nd antennae
-2 pairs maxilae
-naupilus larva
-2nd pair of antennae
class chelicerata
class myriapoda
class crustcea
class hexapoda
class crustcea
which class?
-unique tracheal system
-6 legs
-tagmata = head + thorax + abdomen
class chelicerata
class myriapoda
class crustcea
class hexapoda
class hexapoda
the metamerism of arthropods are evident externally and increased internally
true or false
false; metamerism is reduced internally
a _____ limb comprises a single series of segments attached end-to-end
biramous
uniramous
uniramous
a ____ limb branches into two, and each branch consists of a series of segments attached end-to-end
uniramous
biramous
biramous
a wasp has ____ limbs
biramous
uniramous
uniramous
a crawfish has ____ limbs
biramous
uniramous
biramous
____ are chewing mouthparts
chelicerae
mandibles
mandibles
_____ are claws or pincers mostly used for grasping and tearing
mandibles
chelicerae
chelicerae
____ have chelicerae
spiders
grasshoppers
spiders
____ have mandibles
grasshoppers
spiders
grasshoppers
Which component of the arthropod exoskeleton acts as a barrier to water and external threats?
A) Procuticle
B) Epicuticle
C) Endocuticle
D) Sclerotization
B) Epicuticle
What material is found in the procuticle of the arthropod exoskeleton?
A) Lipoproteins
B) Calcium carbonate
C) Chitin
D) Articular membranes
C) Chitin
Which process is responsible for hardening the outer procuticle in arthropods?
A) Calcification
B) Sclerotization
C) Chitinization
D) Sensilla formation
B) Sclerotization
Sensory receptors in the arthropod exoskeleton are known as:
A) Articular membranes
B) Cuticular receptors
C) Sensilla
D) Epicuticles
C) Sensilla
The epicuticle of the arthropod exoskeleton is permeable to water.
T/F
False
The inner procuticle in arthropods is more flexible than the outer procuticle.
T/F
True
Calcium carbonate deposits contribute to the hardening of the arthropod exoskeleton.
T/F
True
Sclerotization occurs in the epicuticle layer of the arthropod exoskeleton.
T/F
False (It occurs in the outer procuticle)
During ecdysis, which glands secrete enzymes to digest the old procuticle?
A) Hypodermal glands
B) Sensory glands
C) Digestive glands
D) Excretory glands
A) Hypodermal glands
What hardens the new exoskeleton after the old exoskeleton is shed?
A) Deposition of lipoproteins
B) Deposition of calcium carbonate and/or sclerotization
C) Release of enzymes
D) Calcification of the epicuticle
B) Deposition of calcium carbonate and/or sclerotization